#!/bin/bash
#
df -hT | grep "^/dev" | while read line; do
	usage=$(echo $line | awk '{print $6}' | awk -F% '{print $1}')
	if [ $usage -gt 20 ]; then
		disk_name=$(echo $line | awk '{print $7}')
		total_size=$(echo $line | awk '{print $3}')
		free_size=$(echo $line | awk '{print $5}')
		echo "磁盘名称：$disk_name, 总容量：$total_size, 剩余容量：$free_size"
	fi
done
